Improvement in boosc-binders  clamps



G.FQH0LLAND.

Book-Binders Clamp.

N0. 127,882. l PlatentedJuneHJZZ.

4M. FHarM/n/aaMrH/u co. N. t (usava/11's Mauss) UNITED STATES PATENTOFFICE.

GILBERT F. HOLLAND, OF BSTON, MASSACHUSETTS.

IMPROVEMENT IN BOOK-EINDRS CLAMPS.

Specification forming part of Letters Patent No. 127,882, dated June'11, 1872 5 antedated May 28, 187.2.

To all whom it may concern:

I, GILBERT F. HOLLAND, of Boston, in the county of Suffolk and State ofMassachusetts, have invented certain neW and useful Improvements inBindingMachines, of which the following is a specification:

.Thc'Nature and Object of the Invention.

a cross-section of the same. Fig. 3 shows a card folded in book form andbound.

General Description.

K, Fig. 2, represents the base to which the other parts are attached. Bis a buttress made fast to the base K, and forms one side of the foldingchannel M. E is a depth-plate made fast to the buttress B, andextending, as shown, so as to form a bottom for the channel M. A is amovable jaw, provided with a slot, e, Fig.

2, in which the depth-plate E extends. This jaw A is thrown back bysprings S, one of which is shown in Fig. 2, and is moved forward by thecam-lever P.

To use my machine I proceed as follows: The book, pamphlet, lor foldedcard T T, Fig. 3, is llirst made ready for the binding R. The binding Itis pasted and laid over the groove M, which must be of Width and depthto suit the Work to Which it is applied. NOW the book is pressedcarefully down upon the bind'- ing and into the groove M. This operationcauses the binding to fold up onto the sides, as shown at R, Fig. 3.Now, if the jaW A is forced hard uprit will clamp the binding {irmlyontothefbook and complete the operation.

-This machine is usually made of sufficient length to take in a numberof books at each operation.

I claim as' my `invention- The combination of the buttress B, the jaw A,and depth-plate E with the operating device P, substantially asdescribed, and for the purpose set forth.

GILBERT F. HOLLAND.

Witnesses:

-FRANK G. PARKER,

WILLIAM Epson.

